Spreader or digging attachment for magnets



Aug. 17, 1954 E. F. FREY'ER SPREADER OR DIGGING ATTACHMENT FOR MAGNETS Filed April 3, 1953 2 Sheets-Sheet l Ernesf E Freyer INVENTOR.

Aug. 17 1954 E. F. FREYER SPREADER 0R DIGGING ATTACHMENT FOR MAGNETS Filed April 3, 1953 2 Sheets-Sheet 2 [I /Bc [6L FOL o 1% lg! l Ernest F. Freyer Fig. 7

INVENTOR.

WW H

Patented Aug. 17, 1954 UNITED STATE TENT OFFICE SPREADER OR DIGGING ATTACHMENT FOR MAGNETS This invention relates to new and useful improvements in scrap metal salvaging apparatus and the primary object of the present invention is to provide a spreader attachment for magnets whereby scrap metal will be spread in advance of a magnet so that the magnet can efiectively collect magnetizable scraps.

Another important object of the present invention is to provide a scraper attachment for magnets that is secured to a magnet to precede the same as the magnet is pulled through a pile to effectively scatter and spread the scrap metal, whereby the same will be attracted to the magnet.

A further object of the present invention is to provide a spreader attachment for magnets of the aforementioned character including a substantially horizontally disposed vertically adjustable spreader blade that will include an edge located below the under-surface of a magnet on which it is applied to effectively spread a pile of metal in advance of the magnet.

A still further aim of the present invention is to provide a spreader attachment for magnets that is extremely simple and practical in construction, strong and reliable in use, efficient and durable in operation, inexpensive to manufacture, and otherwise well adapted for the purposes for which the same is intended.

These together with other objects and advantages which will be come subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a horizontal sectional view through hoisting chains to illustrate the magnet and the spreader attached thereto;

Figure 2 is a side elevational view of Figure 1;

Figure 3 is a plan view of the present invention in modified form with the dragging means removed;

Figure 4 is an enlarged detail vertical sectional view taken substantially on the plane of section line 4-4 of Figure 3;

Figure 5 is a side elevational view of the present invention in silghtly modified form;

Figure 6 is a side elevational view of the present invention in still further modified form; and

Figure '7 is a front elevational view of Figure 6 and showing the raising and lowering means removed from the magnet.

Referring now to the drawings in detail, where- 5 Claims. (01. 209-215) in for the purpose of illustration, there isdis; closed a preferred embodiment of the present invention, the numeral IE represents a cylindrical magnet of the type frequently used in factory and steel mills for salvaging magnetizable scraps by being pulled over piles of scrap metal. Circumferentially spaced ears I 2 are fixed to and extend upwardly from the upper wall of the magnet and are attached to the branch chains I i of a raising and lowering cable, chain or crane so that the magnet may be lowered onto a pile of metallic scraps.

A pair of spaced parallel rigid arms it are fixed by welding or the like to the magnet It and fixedly support a spreader member or dozer blade 18 whose convex surface is disposed tangential to the periphery of magnet Ill.

The central portion of blade I 8 is fixed to spaced strengthening plates 20 welded to both the blade !8 and magnet ID. A tow member 22 is provided with branch chains 24, 26 and 28, the central chain 26 extending through an opening 30 in blade I8 and being coupled by a pin 32 between plates 2e, and the outside chains '24 and 23 being suitably coupled to the ends of blade I8.

Figures 3 and 4 show the blade mounting means in modified form. In this embodiment, the magnet illa has pairs of spaced parallel mounting plates Mia and Ila welded thereto that receive therebetween flange plates I941 welded to the ends of the blade I 8a. Vertically spaced apertures 20a and the plates l9a are registrable with vertically spaced apertures 22a and the plates [6a, lla and receive removable pins 24a to vertically adjustably secure the blade lBa to the magnet with the lower edge 26a of the blade spaced below the under surface of the magnet.

Figure 5 shows the magnet lllb supportin a spreader member I822 in the form of a scoop or bucket. The rear wall of member lBb is fixed to arms IGb welded to the magnet Mb. The rear wall of scoop l8b is also fixed to the upper wall of magnet [lib by a pair of plates 2% to which a pull chain may be coupled by passing through a central opening 30a in the spreader member l8a.

Reference is now directed to Figures 6 and '7, wherein there is illustrated a combined spreading and racking member l 80 attached to the magnet ldc. The member I80 includes a concavoconvexed blade [8' having downwardly extending longitudinally spaced teeth 19b fixed to its lower edge.

Rigid arms I are terminally fixed by Welding or the like to the plate I8 and magnet lflc to "preaching magnet.

rigidly connect the magnet and blade together. Plates Ztc fixedly connect the magnet IE0 and blade [8' and are intended to be attached to the branch lines of a pull chain or the like.

The spreader attachment may be employed with any suitable design of electric magnet and may be cast with or fabricated with such an electric magnet or the spreader device may be removably attached to an electric magnet. For example, a detachable spreader unit will be used for magnets employed for a short period and a permanent type spreader unit may be used on longer jobs of reclaiming magnetizable metals.

In practical use of the invention, in either of the disclosed forms, the magnet is lowered by the raising and lowering means onto a pile of scrap. Then, the towing means is employed for dragging the spreader member and magnet through the pile of scrap metal. As the spreader member engages the scraps of metal, the metal Will be spread evenly to be contacted by the ap- Magnetizable scraps will adhere to the magnet in and maybe remo-vedfrcm the magnet in after the same has been pulled through the pile of scraps or after a predetermined amount of scrap metal has been collected on the magnet.

What is claimed as new is as follows:

1. In a device for spreading and collecting iron and magnetic scraps from the Waste products of factory and steel mills, a magnet, and a spreader member secured to the magnet to spread metal scraps in advance of the magnet, whereby the magnet will attract magnetizable scraps, raising and lowering chains attached to the magnet, and pull chains attached to the spreader member.

2. In a device for spreadin and collecting iron and magnetic scraps from the waste products of factory and steel mills, a magnet, and a spreader member secured to the magnet to spread metal scraps in advance of the magnet, whereby the magnet will attract magnetizable scrap-s, said spreader member comprising a dozer blade.

3. In a device according to claim 1, said spreader member comprising a, scoop.

In a device for spreading and collecting iron and magnetic scraps from the waste products of factory and steel mills, a magnet, and a spreader member secured to the magnet to spread metal scraps in advance of the magnet, whereby the magnet .will attract magnetizable scraps, said spreader member comprising a dozer blade, said blade having a lower edge, and a plurality of longitudinally spaced teeth projecting downwardly from the lower edge of said blade.

5. In a-device for spreading and collecting iron and magnetic scraps from the Waste products of factory and steel mills, a magnet, raisin and lowerings means attached to the magnet, a pair of rigid arms fixed to the magnet, a spreader blade detachably secured to said arms to spread metal scraps in advance of the magnet, and pull chains attached to said blade.

References Cited in the file of this patent UNITED STATES PATENTS Number 

